Sig Sauer M18-9-CSS-MS-10 | M18 9mm 3.9in Coyote

The SIG Sauer M18 (M18-9-CSS-MS-10) is the commercial version of the military M18 compact pistol, chambered in 9mm with a 3.9-inch barrel and a Coyote PVD slide. It ships with three 10-round steel magazines, SIGLITE night sights, and an optic-ready slide compatible with Romeo-M17 and DeltaPoint Pro footprints. The design includes ambidextrous controls and a manual safety for conservative users. For an optic under $1,000 that mounts directly to the supplied footprint, the SIG Romeo-M17 is a straightforward pairing.

Typical applications for this platform include everyday carry (EDC) and range training; its compact footprint and optics-ready slide also make it suitable for professional carry roles where a compact 9mm is preferred.

Product Specifications

• The UPC is 798681715206.
• The caliber is 9mm Luger.
• The barrel length is 3.9 inches.
• The capacity is 10 rounds.
• The package includes three 10-round steel magazines.
• The sights are SIGLITE night sights.
• The slide finish is Coyote PVD.
• The slide material is stainless steel.
• The barrel material is carbon steel.
• The overall length is 7.25 inches.
• The weight is 28.1 oz.
• The action is striker-fired.
• The pistol includes a manual safety.
• The optic footprint is DeltaPoint Pro / Romeo-M17 compatible.
• The accessory rail is M1913 Picatinny.

Built from a military-derived design and released commercially with a Coyote PVD finish, the M18 delivers a compact, optics-ready package that keeps controls familiar to users of the P320 family. The included magazines and night sights make it range-ready out of the box, while the optic footprint supports common red-dot options for faster sight acquisition.

Owners commonly praise its military-grade reliability and ergonomic controls.

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